Kotler, P., & Armstrong, G. (1997). Marketing: An introduction (4th edition.). Prentice Hall International.
Chicago Style (17th ed.) CitationKotler, Philip, and Gary Armstrong. Marketing: An Introduction. 4th edition. New Jersey: Prentice Hall International, 1997.
MLA (8th ed.) CitationKotler, Philip, and Gary Armstrong. Marketing: An Introduction. 4th edition. Prentice Hall International, 1997.
Warning: These citations may not always be 100% accurate.